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**Educational Website Content: Chemistry Quiz** --- **Question Completion Status:** - Questions 1 through 9 are numbered in a navigation section. Some boxes appear with icons indicating responses for certain questions. --- **Question 1:** *Which of the following is a molecule, but not a compound?* - ○ H2O - ○ 2H - ○ H2 - ○ H+ --- **Question 2:** *A substance dissociates into K+ and Cl- in solution. The substance is a:* - ○ acid - ○ base --- **Explanation of Concepts:** 1. **Molecules vs. Compounds:** - A molecule consists of two or more atoms bonded together. This can involve atoms of the same element or different elements. - A compound specifically requires two or more different elements. For example, H2O is a compound, while H2 is a molecule but not a compound, since it consists of the same element. 2. **Dissociation in Solution:** - When a substance dissociates into ions in a solution, it indicates the nature of the substance. - K+ and Cl- are ions that suggest the substance is a salt (like KCl), not an acid or base, as these specifically confer additional characteristics to solutions (like pH alterations). ---

**Educational Website Content: Chemistry Quiz** --- **Question Completion Status:** - Questions 1 through 9 are numbered in a navigation section. Some boxes appear with icons indicating responses for certain questions. --- **Question 1:** *Which of the following is a molecule, but not a compound?* - ○ H2O - ○ 2H - ○ H2 - ○ H+ --- **Question 2:** *A substance dissociates into K+ and Cl- in solution. The substance is a:* - ○ acid - ○ base --- **Explanation of Concepts:** 1. **Molecules vs. Compounds:** - A molecule consists of two or more atoms bonded together. This can involve atoms of the same element or different elements. - A compound specifically requires two or more different elements. For example, H2O is a compound, while H2 is a molecule but not a compound, since it consists of the same element. 2. **Dissociation in Solution:** - When a substance dissociates into ions in a solution, it indicates the nature of the substance. - K+ and Cl- are ions that suggest the substance is a salt (like KCl), not an acid or base, as these specifically confer additional characteristics to solutions (like pH alterations). ---

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Educational Website Content: Chemistry Quiz** --- **Question Completion Status:** - Questions 1 through 9 are numbered in a navigation section. Some boxes appear with icons indicating responses for certain questions. --- **Question 1:** *Which of the following is a molecule, but not a compound?* - ○ H2O - ○ 2H - ○ H2 - ○ H+ --- **Question 2:** *A substance dissociates into K+ and Cl- in solution. The substance is a:* - ○ acid - ○ base --- **Explanation of Concepts:** 1. **Molecules vs. Compounds:** - A molecule consists of two or more atoms bonded together. This can involve atoms of the same element or different elements. - A compound specifically requires two or more different elements. For example, H2O is a compound, while H2 is a molecule but not a compound, since it consists of the same element. 2. **Dissociation in Solution:** - When a substance dissociates into ions in a solution, it indicates the nature of the substance. - K+ and Cl- are ions that suggest the substance is a salt (like KCl), not an acid or base, as these specifically confer additional characteristics to solutions (like pH alterations). ---
Transcribed Image Text:**Educational Website Content: Chemistry Quiz** --- **Question Completion Status:** - Questions 1 through 9 are numbered in a navigation section. Some boxes appear with icons indicating responses for certain questions. --- **Question 1:** *Which of the following is a molecule, but not a compound?* - ○ H2O - ○ 2H - ○ H2 - ○ H+ --- **Question 2:** *A substance dissociates into K+ and Cl- in solution. The substance is a:* - ○ acid - ○ base --- **Explanation of Concepts:** 1. **Molecules vs. Compounds:** - A molecule consists of two or more atoms bonded together. This can involve atoms of the same element or different elements. - A compound specifically requires two or more different elements. For example, H2O is a compound, while H2 is a molecule but not a compound, since it consists of the same element. 2. **Dissociation in Solution:** - When a substance dissociates into ions in a solution, it indicates the nature of the substance. - K+ and Cl- are ions that suggest the substance is a salt (like KCl), not an acid or base, as these specifically confer additional characteristics to solutions (like pH alterations). ---
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